2 types, Product description, Vegasel 543 – VEGA VEGASEL 543, 544, 545, 546, 547 User Manual
Page 4: Vegasel 544, Vegasel 545, Vegasel 546
4
VEGASEL
Product description
1.2 Types
VEGASEL 543
Two-point level switch (hysteresis variable 1 … 99 %)
Inputs:
current 0/4 … 20 mA or
voltage 0/2 … 10 V
Outputs:
1 relay (spdt)
1 transistor
Approvals *:
as part of an overfill protection acc. to WHG and VbF
Application:
min.-/max.-control, overfill protection
VEGASEL 544
Two-point level switch (hysteresis selectable each 1 % or 3 %)
Inputs:
current 0/4 … 20 mA or
voltage 0/2 … 10 V
Outputs:
2 relays (spdt)
2 transistors
Approvals *:
as part of an overfill protection acc. to WHG and VbF
Application:
overfill protection, protection against dry running of
pumps
VEGASEL 545
(corresponds to VEGASEL 543 + VEGASEL 544)
Two-point level switch (hysteresis variable 1 … 99 %)
Two-point level switch (hysteresis selectable each 1 % or 3 %)
Inputs:
current 0/4 … 20 mA or
voltage 0/2 … 10 V
Outputs:
3 relays (spdt)
3 transistors
Approvals *:
as part of an overfill protection acc. to WHG and VbF
Application:
min.-/max.-control, overfill protection, protection against
dry running of pumps
VEGASEL 546
(corresponds to two VEGASEL 544)
Four-point level switch (hysteresis selectable each 1 % or 3 %)
Inputs:
current 0/4 … 20 mA or
voltage 0/2 … 10 V
Outputs:
4 relays (spdt)
4 transistors
Approvals*:
as part of an overfill protection acc. to WHG and VbF
Application:
overfill protection, protection against dry running of
pumps
Max.
Min.
off
on
Level
time t
Fig. 1.2 Single point level switch
2
time t
off
off
on
1
on
Level
Fig. 1.3 Two-point level switch (variable
hysteresis)
Level
time t
Fig. 1.4 Level switch with adjustable and
selectable hysteresis
*
in preparation
Max.
off
2
on 2
off 2
Min.
on
1
on 1
off 1
time t
Level
4
3
2
1
off
on
on
off
off
on
on
off
Fig. 1.5 Double single point level switch